17.--After the selection of cards for the first deal has been made, it is
the duty of an adversary to shuffle the pack selected, and of the player
who is about to deal, or of his partner, to shuffle the other pack. {170}
18.--The pack must neither be shuffled below the table, nor so that the
face of any card be seen.
19.--The pack must not be shuffled during the play of the hand.
20.--A pack, having been played with, must not be shuffled by dealing it
into packets.
21.--Each player has a right to shuffle once only, except as provided by
Law 24, prior to a deal, after a false cut,[51] or prior to a new deal.[52]
22.--The dealer's partner must collect the cards for the ensuing deal, and
has the first right to shuffle that pack.
23.--Each player, after shuffling, must place the cards, properly collected
and face downwards, to the left of the player about to deal them.
24.--The dealer has always the right to shuffle last. Should a card or
cards be seen during his shuffling or whilst giving the pack to be cut, he
may be compelled to re-shuffle.